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Developmental (FEDC-informed)

ThreadForge

Nothing has one cause. Pick a tangled event — the Dust Bowl, the Titanic, a school garden that died, a lake full of fish that didn’t survive the summer — pull the five threads behind it (the Spark, the Slow cause, the Hidden cause, Chance, and the part People played), spot the one detail that isn’t a cause at all, weigh them on a balance, and decide which thread mattered MOST. Then compare a second event. On-device, nothing saved.

▶ Play it now

Built for sittings of about 20 minutes on the screen. That is our design budget, not a measurement.

ThreadForge app icon

Meet your mentor

Every Spark & Anvil app has a friendly mentor character that demonstrates, asks, and patiently scaffolds learning.

Mentored by Manywhy

ThreadForge mascot
Live Native Swift 6 · SwiftUI · FoundationModels Developmental (FEDC-informed) C3 Framework D2.His.14.6-8 (multiple causes) NGSS crosscutting: Cause and Effect Hero color: #9a3412

What's inside

🎯

Learning goal

Nothing has one cause. Pick a tangled event — the Dust Bowl, the Titanic, a school garden that died, a lake full of fish that didn’t survive the summer — pull the five threads behind it (the Spark, the Slow cause, the Hidden cause, Chance, and the part People played), spot the one detail that isn’t a cause at all, weigh them on a balance, and decide which thread mattered MOST. Then compare a second event. On-device, nothing saved.

Mentored by Manywhy — no data leaves the device.

How ThreadForge handles your kid's data

  • ✅ All progress, settings, and AI-generated content stays on the device
  • ✅ No analytics, no tracking, no third-party SDKs
  • ✅ Free — no ads, no in-app purchases
  • ✅ No personal information collected from children — in line with COPPA (updated by the 2026 FTC amendments)
  • ✅ No chat with strangers — play-together rooms use a short code and preset emotes, never typed messages

Full parent privacy guide →

Built with ForgeKit

ThreadForge runs on ForgeKit — the open-source Swift Package Manager framework that powers every Spark & Anvil app. ForgeKit ensures consistent accessibility, COPPA compliance, and design language across the portfolio, so your kid's progress and preferences feel coherent across every app they touch.

Coming to the App Store

ThreadForge is in active development. Email us to hear when it ships — no marketing, no spam, just a one-shot launch announcement.

Email me at launch

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